SKU: 89786002483

SPL Parts 2014+ BMW M2/M3/M4 (F8X) Rear Upper Control Arms

Sale price$455.85 Regular price$506.50
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Ships within 48 hours · Estimated delivery Aug 26 - Aug 31

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Description

SPL Parts 2014+ BMW M2/M3/M4 (F8X) Rear Upper Control ArmsBMW F8X adjustable Rear Upper Arms (RUA) are an absolute necessity to maintain proper rear camber and reduce tire wear on the street and track. The stock BMW setup has an aggressive camber curve through bump travel, which is very apparent on lowered cars. Excess negative camber causes premature tire wear on the inside edge, and reduced traction on acceleration while too little camber will limit rear grip while cornering. Our Rear Upper Arms provide a

BMW F8X adjustable Rear Upper Arms (RUA) are an absolute necessity to maintain proper rear camber and reduce tire wear on the street and track. The stock BMW setup has an aggressive camber curve through bump travel, which is very apparent on lowered cars. Excess negative camber causes premature tire wear on the inside edge, and reduced traction on acceleration while too little camber will limit rear grip while cornering. Our Rear Upper Arms provide a wide adjustment range for precise rear camber alignment that is easily optimized for street or track driving while eliminating bushing deflection with smooth articulating Teflon lined rod ends in place of the soft factory rubber bushings. Our kit replaces the factory links commonly referred to as the rear wishbone and rear guide links. BMW F8X Rear Upper Arms are gun drilled 2024 Aluminum links to reduce weight, then are Black Anodized to prevent corrosion and provide a durable finish. Our 360 degree 6061-T6 Aluminum Rotating Clamp design allows for quick, precise adjustment. Our Clamps tightened down with Blue Anodized Titanium Socket Head Cap Screws gives easy access to adjust camber settings, shaving off even more unsprung weight without compromising strength. Our Rear Upper Links provide superior performance, durability, and ease of adjustment. Long gone are the days of fumbling with wrenches to tighten jam nuts while trying to trying to keep your bearings oriented correctly. FK Spherical Bearings and Rod Ends are manufactured in Connecticut and utilize a Teflon liner to provide quiet operation, lower friction, smooth articulation, and eliminates bushing deflection under load. Sold as a complete kit for one car (4 total arms). Made in the USA.

  • Proudly made, engineered, and assembled in the USA.

This Part Fits:

Year Make Model Submodel
2016-2018 BMW M2 Base
2019-2021 BMW M2 Competition
2020 BMW M2 CS
2015-2018 BMW M3 Base
2015-2020 BMW M4 Base
2019-2020 BMW M4 CS
2016 BMW M4 GTS
Shipping Notes
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 89786002483

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4.7 ★★★★★
Based on 27 reviews
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Crystal W.
Natrona Heights, US
★★★★★ 5
The Best Affordable Twin Bed Frame
Size: Twin, Style: 14 Inch ( Non - Foldable), Size: Twin, Style: 14 Inch ( Non - Foldable)
I’m honestly so impressed with this twin-size metal bed frame. I was looking for something affordable but still sturdy and safe for my toddler, and this checked every box. Assembly was super simple, I put it together by myself without any stress, which is a huge win. The frame feels solid, doesn’t squeak, and gives me peace of mind knowing my little one is sleeping safely. It’s also a great height, not too high, not too low, making it perfect for a toddler transitioning into their own bed. For the price, the quality really exceeded my expectations. If you’re looking for a budget-friendly, easy to assemble bed frame for a child, this is definitely worth it!
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Reviewed in the United States on April 16, 2026
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WAYNE
Massapequa, US
★★★★★ 5
Great frame for a pinch!
Size: Full, Style: 18 Inch ( Foldable)
Needed foot surgery and was in need of a frame that I could assemble quickly on my first floor since I was having foot surgery in 2 days. Arrived quickly, unfolded the 2 pieces, connected the two frames together with 2 wing nuts. Assembly took 5 minutes. Super simple! It seems sturdy and the 18 inch frame is high enough to allow me to stand from it on one leg. Great buy!
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Reviewed in the United States on May 29, 2026
L
Verified Purchase
Lucas Satterfield
Pawtucket, US
★★★★★ 5
Sturdy, Affordable and Easy To Set Up
Size: King, Style: 18 Inch ( Foldable)
This was so easy to set up and is super sturdy! It has transformed my bedroom! I was able to stack multiple storage containers under the bed, add an extra long bed skirt and walaa! My favorite part is that my mattress is no longer sinking in spots where the boxsprings were faulty. My 13 yr old and 16 yr old had this set up for me in under 30 minutes. My husband is 6'3" and 180 lbs. I was hesitant thinking we would break the bed within a week but it has upheld!!!
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Reviewed in the United States on April 24, 2026
M
Verified Purchase
M Cochran
Birmingham, US
★★★★★ 4
Mixed feelings so far
Size: Queen, Style: 14 Inch ( Foldable), Size: Queen, Style: 14 Inch ( Foldable)
**TWO MONTH UPDATE: overall I still like the bed frame. I appreciate the ample amount of storage underneath the frame, to put stuff underneath when company comes and you need to stash stuff out of sight. The frame does wiggle a lot with any extra activity, but that's kind of expected with a foldable frame I suppose. *INITIAL REVIEW: I will update this review in a few months, after several rounds of overnight visitors have used this queen size frame and a 6" foldable foam mattress. I think this will be a good purchase and offer a better night's rest than the air mattress I was previously using for company. PROS: - very simple setup and take down - easy to store away, not bulky - nice height off the ground to help my guests feel comfortable and easily get in and out of the bed - appears to be a sturdy frame made (I will update after a few months of use) - fast, free shipping CONS: - arrived with scuffs on the frame - a lot of the metal mattress supports are not straight, indicating poor craftsmanship, but time will tell - made in China - scoots across wood floor easily, so if you're planning to use on hardwood floors you may want to add those rubber pads to the bottom of the legs to prevent it from sliding when you get in and out of the bed - the two bolts that connect the two frames together (queen size frame) might get lost, it would be cool if they were attached somehow, but for now I'm just keeping them bolted to one frame while in storage.
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Reviewed in the United States on July 1, 2025
M
Verified Purchase
Mallory
Birmingham, US
★★★★★ 5
Good quality! Lots of storage underneath.
Size: King, Style: 18 Inch ( Foldable), Size: King, Style: 18 Inch ( Foldable)
We’ve had it for about a year now. It’s very tall, supports the mattress well, and is good quality for the price. It’s easy to put together and survived our first move great. There’s not a lot of squeak with movement. Overall good purchase with good delivery and easy to put together.
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Reviewed in the United States on April 27, 2026

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